Malicious PDF — malware analysis report

Static analysis result for SHA-256 5007791c80687115…

MALICIOUS

PDF

52.2 KB Created: 2020-08-21 14:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1642842add9f1384929c701e6d2f835 SHA-1: e4166401f47d8c511984303f3bfe9bcaf6b1c234 SHA-256: 5007791c80687115aa76ac2ed723eab3b7b0baee5b9b2074f3ab6565aa4752c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a high number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.cc). The document body, though heavily obfuscated, contains the URL that triggered this heuristic. The presence of numerous links, including one to a malicious redirector, strongly suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=qasida+burda+full+pdf In PDF document text
    • http://pejibiz.lopatswimming.org/uploads/1/3/0/8/130814124/1b1c796d653c6b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/twitch_shoutout_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/xuxevefidakinimazavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7508/0087/files/vizot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/saserezuxetix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5937/4230/files/bleach_opening_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0812/2280/files/8664808998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/vevalufupipovena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3051/9709/files/36092408392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6516/1366/files/andreas_moritz_livre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1473/files/ctet_syllabus_for_science.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/wododasirodema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/kanutobi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A0 5236 bytes
SHA-256: 88e99dfda65bb07e08c8e8caafbd6c57b21e5451e8c8654fabf1d56c76a8ad8e
font_01_sfnt_off0000896a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x896A 9944 bytes
SHA-256: 0144de72852a1c79ad7f0ebe7c57271caa4bf70a634f98102f017323a20751ce
font_02_sfnt_off0000aa1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA1A 17300 bytes
SHA-256: 065d57a1000d3672c749218a3f1182980b4f2c0fb15528076ceb6837cf2ed053

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